<template>
  <div class="app">
    <h3>我是APP组件</h3>
    <Child></Child>
  </div>
</template>

<script>
import Child from './components/Child'
export default {
  name: 'App',
  components: {
    Child
  },
};
</script>

<style scoped>
  .app {
    background-color:  gray;
    padding: 10px;
  }
</style>